UPS & USPS Address Validation for Magento 1

SKU
UPS
In stock
$99
$99

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2 out of 5
Didn't realize until after deployment that this module only works for EITHER UPS or USPS, but doesn't check against both for orders.
5 out of 5
Support was responsive when we needed to modify the extension for compatibility with a third-party one-page checkout extension.
5 out of 5
A great solution. It is definitely worth paying to have them install it.